121030755 has 8 divisors (see below), whose sum is σ = 193649232. Its totient is φ = 64549728.

The previous prime is 121030753. The next prime is 121030787. The reversal of 121030755 is 557030121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121030755 - 2¹ = 121030753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121030751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034344 + ... + 4034373.

It is an arithmetic number, because the mean of its divisors is an integer number (24206154).

Almost surely, 2^121030755 is an apocalyptic number.

121030755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121030755 is a deficient number, since it is larger than the sum of its proper divisors (72618477).

121030755 is an equidigital number, since it uses as much as digits as its factorization.

121030755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068725.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 121030755 is about 11001.3978657260. The cubic root of 121030755 is about 494.6506462624.

Adding to 121030755 its reverse (557030121), we get a palindrome (678060876).

The spelling of 121030755 in words is "one hundred twenty-one million, thirty thousand, seven hundred fifty-five".